Stainless Steel 422

General Characteristics of Stainless 422

With better strength at higher temperatures, Stainless 422 is an appealing alternative to Stainless 403. It offers ductility and strength from room temperature to 1200°F (649°C) and resists scaling and oxidation to 1400°F (760°C).

Chemical Composition of Stainless 422

Carbon 0.20-0.25

Manganese 1.00 max

Molybdenum 0.75-1.25

Chromium 12.00-14.00

Silicon 1.00 max

Sulfur 0.03 max

Nickel 0.40-1.00

Tungsten 0.75-1.25

Vanadium 0.20-0.50

Phosphorus 0.04 max

Iron balance

Heat Treatment of Stainless 422

To anneal, heat to 1600° to 1650°F (871° to 899°C), then slowly cool in furnace

For stress relief, heat to 1100° to 1150°F (593° to 621°C) before furnace or air cooling

Harden by heating to 1875° to 1925°F (1024° to 1052°C) before oil quenching and tempering